Synthesis, structural characterization, water ad‐/de‐sorption isotherm, and <scp>CO₂</scp> uptakes of a <scp>2D</scp> Cu(I) metal organic framework with 1,3,5‐tris(4‐pyridylethynyl)benzene (L) and Tricyanomethanide (tcm⁻) ligand

Abstract A d 10 Cu(I) two‐dimensional (2D) metal–organic framework (MOF) with chemical formulas, {[Cd(L)(tcm)(H 2 O)]⋅2H 2 O} n ( 1 ) (L = 1,3,5‐tris(4‐pyridylethynyl)benzene; tcm −1 = tricyanomethanide) was synthesized and structurally characterized by single crystal X‐ray diffraction method. In 1 , the coordination geometry of Cu(I) ion is distorted tetrahedral coordinated to four N atoms from three L and one tcm − ligands. A 2D puckered honeycomb‐like layer is formed via the bridges of Cu(I) ions and L ligands with tris ‐monodentate coordination mode. Two 2D layers are mutually interpenetrated via the π – π stacking interaction between benzene ring of L ligand and pyridyl ring of neighboring L ligand to form a two‐fold interpenetrated 2D net and then arranged orderly to construct its 3D supramolecular network. Thermal stability and in‐situ temperature‐dependent structural variations of 1 are performed by TG analysis associated with temperature‐dependent PXRD measurement. The water vapor ad‐/de‐sorption isotherm and CO 2 adsorption isotherm of 1 are measured and discussed.